METRON QA-90

3-1
3. Operating QA-90
This chapter explains the operating controls, switches and menus of
the QA-90, details how to use them in testing, and provides general
information on printouts and operator maintenance.
3.1 Control Switches and
Connections
Front Panel
1. Key Pad
11 alphanumeric keys, used to enter information.
Patient Leads: New window for recording patient inputs.
Clear: Clears the whole display
Return: Deletes the last character
Enter: Records entered data
2. Function Keys
F1-F4 are used to select the functions shown in the menu bar
at the bottom of the display, i.e., for selecting the function that
is directly above the key. F5-F7 are used to select the func-
tion, or enter information in the message field in the same
line.
3 LCD Display
Shows messages, test results and function menus.
Max 265 VAC Max 500 VDC